cdp_blk.h

块级的连续数据保护系统

#include <linux/ioctl.h>
#define MAJOR_NUM 252
#define GET_TIME _IOW(MAJOR_NUM, 0, struct Time *)
#define CDP_STOP _IOW(MAJOR_NUM, 1, int *)

struct Time 
{
	int hrs;
        int min;
        int sec;                               
};
#define DEVICE_FILE_NAME "block_dev"